CN108355630A - A kind of device and method of regenerating active carbon and its liquid waste processing - Google Patents
A kind of device and method of regenerating active carbon and its liquid waste processing Download PDFInfo
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- CN108355630A CN108355630A CN201810244259.9A CN201810244259A CN108355630A CN 108355630 A CN108355630 A CN 108355630A CN 201810244259 A CN201810244259 A CN 201810244259A CN 108355630 A CN108355630 A CN 108355630A
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- active carbon
- storage tank
- regenerating active
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- liquid waste
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a kind of regenerating active carbon and its device and method of liquid waste processing, which includes regenerating active carbon tower, acid storage tank, oxidant storage tank, alkali storage tank, biochemical treatment system, delivery pump and delivery pipe.The activated carbon of adsorption saturation, carried out successively in regenerator pickling, intermittent aerating, 95 100 DEG C under the conditions of constant temperature processing, low-temperature catalytic oxidation, alkali cleaning, in and wait processes, realize regenerating active carbon.Waste liquid after regenerating active carbon is sent into biochemical treatment system and is handled, and realizes regeneration liquid waste zero-emission.The present invention can be such that the toxic organic compound being adsorbed in activated carbon is detached from activated carbon, and oxygenolysis is small-molecule substance, promotes the biodegradability of waste liquid, activated carbon is made to regenerate completely；Regeneration liquid waste is sent to biochemical treatment system, carries out advanced treating, without entering anaerobic pond, is not generated secondary pollution, is realized energy conservation and environmental protection.
Description
Technical field
The present invention relates to technical field of water pollution control field more particularly to a kind of regenerating active carbon and its liquid waste processings
Device and method.
Background technology
Activated carbon has unique internal pore structure and larger specific surface area, is a kind of excellent adsorbent, it is wide
It is general to be applied in wastewater treatment.After activated carbon adsorption saturation, activity is begun to decline, if directly discarded, not only causes to provide
Source wastes, and forms secondary pollution, and also greatly increase cost, therefore no matter is examined from environmental protection or economic benefit angle
Consider, so that charcoal is restored adsorption activity again, recycle, have a very important significance.Currently, the activated carbon industrially used is again
Generation method mainly has heating method of reproduction, chemical agent method of reproduction, bio-regeneration method, catalytic wet oxidation method of reproduction, microwave radiation
Method of reproduction, electrochemical regeneration method etc..
Currently, the useless charcoal regeneration in water process is usually to heat based on regeneration technology, the heating device in this method takes up an area
Area is larger, and energy consumption is higher, and the coefficient of losses of charcoal is in 5%-10%, and operating procedure is complicated, and it also will produce again in operation
Raw waste water and gas can also cause secondary pollution.In order to solve the above problem, various new processes and method are all developed,
In, patent《A kind of system handling organic wastewater using activated carbon adsorber》(number of patent application 201620518222.7) is open
It is a kind of to mend charcoal, row's charcoal, consumable water circulation use automatically, while the continous way thermopnore activated carbon of useless charcoal energy in-place regeneration is inhaled
Attached regenerative system.But in the processing of regenerating active carbon process and regeneration liquid waste, there are not more narrations, do not propose one kind yet
Preferable solution.
Therefore, those skilled in the art is dedicated to developing equipment and the side of a kind of regenerating active carbon and its liquid waste processing
On the one hand method can simplify the equipment of regenerating active carbon, improve the efficiency of regenerating active carbon, on the other hand can handle its generation simultaneously
Waste water, ensure that treated liquid qualified discharge do not generate secondary pollution, realize energy conservation and environmental protection.
Invention content
In view of the drawbacks described above of the prior art, the technical problem to be solved by the present invention is to how improve regenerating active carbon
Efficiency, how the waste liquid generated in purification activated carbon processing procedure, realize energy conservation and environmental protection.
To achieve the above object, the present invention provides a kind of regenerating active carbon and its equipment of liquid waste processing, including activity
Charcoal regenerator further includes acid storage tank, oxidant storage tank, alkali storage tank, biochemical treatment system, delivery pump and delivery pipe, the activity
Charcoal regenerator is connected by delivery pipe with acid storage tank, oxidant storage tank, alkali storage tank, biochemical treatment system and delivery pump, described defeated
Send pump to be conveyed for the liquid in acid storage tank, oxidant storage tank and alkali storage tank and power be provided, the regenerating active carbon tower, acid storage tank,
Oxidant storage tank, alkali storage tank, biochemical treatment system control the flowing of liquid by respective valve, and the regenerating active carbon tower can be
Regenerated carbon under the processing successively of acid storage tank, oxidant storage tank and alkali storage tank liquid, the biochemical treatment system can handle work
Property charcoal regenerator regenerated carbon after remaining waste liquid to discharge after up to standard.
Further, the biochemical treatment system includes aerobic tank and MBR biochemical systems.
Further, the MBR biochemical systems include MBR membrane cisternas, ultrafiltration membrane and water production system, and the ultrafiltration membrane is curtain
Hollow-fibre membrane, the curtain doughnut membrane aperture is between 0.08-2 μm.
Further, filler is placed in the MBR membrane cisternas, the shape of filler is spongy, is suspended in the MBR department of biochemistry
It is flowable in system pond.
Further, the oxidant in the oxidant storage tank is sodium peroxydisulfate, sodium perchlorate, sodium chlorate and hydrogen peroxide etc.
One or more of.
Further, the regenerating active carbon tower includes electric heater unit, aerator and thermometric display device, the work
Property charcoal regenerator side be provided with three visual windows of upper, middle and lower, aerator is used for intermittent aerating
The present invention also provides it is a kind of using the equipment of the regenerating active carbon and its liquid waste processing carry out regenerating active carbon and
The method of its liquid waste processing, includes the following steps：
The first step：The activated carbon of saturation absorption is inputted regenerating active carbon tower, emptied in regenerating active carbon tower by acid processing
Liquid opens acid storage tank valve, the liquid in acid storage tank is conveyed into regenerating active carbon tower to liquid level line by delivery pump, is flooded
Activated carbon, pickling certain time impregnate proper time and intermittent aerating, thereafter let out partially liq to liquid and just flood activity
Charcoal upper layer is heated to 95-100 DEG C of constant temperature processing certain time；
Second step：Low-temperature oxidation stops heating, opens oxidant storage tank valve, will be in oxidant storage tank by delivery pump
Liquid be conveyed into regenerating active carbon tower to liquid level line, impregnate certain time and intermittent aerating；
Third walks：Alkali cleaning neutralizes, and opens alkali storage tank valve, the liquid in alkali storage tank is conveyed into activated carbon by delivery pump
Regenerator adjusts pH to 6-8；
4th step：Regenerating active carbon tower bottom valve is opened in the recycling of liquid waste processing and activated carbon, is allowed and is adjusted the useless of pH
Liquid gravity flow enters biochemical treatment system, and the biochemical treatment system discharges liquid waste processing to up to standard afterwards, the work after the regeneration
Property charcoal is fed back in activated carbon adsorber.
In a preferred embodiment of the invention, the activated carbon be granular activated carbon, in the form of fluid bed into
Row conveying.
In a preferred embodiment of the invention, temperature is not less than 65 DEG C in the second step oxidation process, reaction
Time is 30min, need not be heated in the oxidation process, and oxidative decomposition can be completed by waste heat.
In a preferred embodiment of the invention, the first step pickling time is 5min, and soaking time is
30min, constant temperature processing time are 120min, and soaking time is 30min in the second step.
The second step low-temperature oxidation stage in the method for regenerating active carbon of the present invention and its liquid waste processing does not need to
Continue to heat, realizes the process of low-temperature catalytic oxidation.Organic matter in activated carbon is oxidized to small-molecule substance, and biodegradability increases
By force, it is transported to biochemical treatment system, does not generate secondary pollution.
Granular activated carbon in regenerative system of the present invention is fluid, and conveying is convenient, reduces the charcoal loss rate of activated carbon；Regeneration
In the process, catalytic temperature is at 70 DEG C or so, and heating water is less, and the simultaneous oxidation stage need not heat, can be into using waste heat
Row reaction, saves electric energy；When catalytic oxidation stage, it can be greatly improved by the oxidation operation in solution at small-molecule substance
Its biodegradability；After regenerative wastewater enters biochemical system, needing not move through anaerobic pond can thoroughly degrade organic matter.With it is existing
Technology is compared, and the present invention has regeneration efficiency high, and favorable regeneration effect, the charcoal proportion of goods damageds are low, and regenerative wastewater is thoroughly handled, equipment fortune
Row advantage at low cost.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to attached drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is the regenerating active carbon of the preferred embodiment of the present invention and its schematic diagram of waste liquor treatment equipment.
Specific implementation mode
Multiple preferred embodiments that the present invention is introduced below with reference to Figure of description, keep its technology contents more clear and just
In understanding.The present invention can be emerged from by many various forms of embodiments, and protection scope of the present invention not only limits
The embodiment that Yu Wenzhong is mentioned.
In the accompanying drawings, the identical component of structure is indicated with same numbers label, everywhere the similar component of structure or function with
Like numeral label indicates.The size and thickness of each component shown in the drawings are to be arbitrarily shown, and there is no limit by the present invention
The size and thickness of each component.In order to keep diagram apparent, some places suitably exaggerate the thickness of component in attached drawing.
Fig. 1 is the regenerating active carbon and its waste liquor treatment equipment of a better embodiment of the invention, and main includes activity
Charcoal regenerator 1, acid storage tank 2, oxidant storage tank 3, alkali storage tank 4, biochemical treatment system 5, delivery pump 6 and delivery pipe, activated carbon is again
Raw tower 1 is connected by delivery pipe with acid storage tank 2, oxidant storage tank 3, alkali storage tank 4, biochemical treatment system and delivery pump 6, described defeated
It is acid storage tank 2 to send pump 6, the liquid conveying in oxidant storage tank 3, alkali storage tank 4 provides power, and biological treatment system 5 is for handling
The waste liquid flowed out after regenerating active carbon, arrow indicates the conveying direction of liquid in figure.Regenerating active carbon tower 1 further includes electrical heating dress
It sets, aerator and thermometric display device, side is provided with three visual windows of upper, middle and lower, and aerator is used for intermittent aerating.It is living
Property 1 middle and lower part of charcoal regenerator have a liquid level line 7, the volume for indicating liquid input.Oxidant in oxidant storage tank is excellent
It is selected as one or more of sodium peroxydisulfate, sodium perchlorate, sodium chlorate and hydrogen peroxide etc..
In preferred embodiment party's scheme of the present invention, the progress of regenerating active carbon and its waste liquor treatment equipment is utilized
The method of regenerating active carbon and its liquid waste processing mainly includes the following steps that：
The first step：Acid is handled, the activated carbon input regenerating active carbon tower 1 that saturation is adsorbed, in emptying regenerating active carbon tower 1
Liquid, open 2 valve of acid storage tank, the liquid in acid storage tank is conveyed into liquid level line by regenerating active carbon tower 1 by delivery pump
7, activated carbon is flooded, pickling 5min impregnates 30min and intermittent aerating, thereafter lets out partially liq to liquid and just flood activity
Charcoal upper layer is heated to 95-100 DEG C of constant temperature processing 2h；
Second step：Low-temperature oxidation stops heating, opens 3 valve of oxidant storage tank, by delivery pump 6 by oxidant storage tank 3
In liquid be conveyed into regenerating active carbon tower 1 to liquid level line 7, impregnate 30min and intermittent aerating；
Third walks：Alkali cleaning neutralizes, and opens 4 valve of alkali storage tank, the liquid in alkali storage tank 4 is conveyed into work by delivery pump 6
Property charcoal regenerator 1, adjust pH to 6-8；
4th step：The recycling of liquid waste processing and activated carbon opens 1 bottom valve of regenerating active carbon tower, allows and adjust pH's
Regenerated liquid gravity flow enters biochemical treatment system 5, and the biochemical treatment system 5 discharges liquid waste processing to up to standard afterwards, the regeneration
Activated carbon afterwards is fed back in activated carbon adsorber.
The concrete activity charcoal regeneration of the present invention and its embodiment of liquid waste processing are as follows：
The amount of regeneration of waste active carbon is 500Kg/ times in the present embodiment, and the initial COD of waste water is 200-400mg/L.
The regenerating active carbon flow of adsorption saturation is as follows：
The first step：The blow valve in regenerating active carbon tower 1 is opened, the water in regenerating active carbon tower is emptied, opens acid storage
Liquid in acid storage 2 is conveyed into regenerating active carbon tower by 2 pipeline valve of slot by delivery pump 6, when the page reaches liquid level line 7
Afterwards, pickling 5min then impregnates 30min and intermittent aerating is (intermittently than 1:4), row's part acid solution to liquid just floods activated carbon
Upper layer starts electric heater unit, is heated to 95-100 DEG C, constant temperature keeps 120min；
Second step：Heating power supply is closed, 3 pipeline valve of oxidizer storage tank is opened, by delivery pump 6 by oxidant storage tank
Liquid input regenerating active carbon slot 1 in 3 impregnates 30min and intermittent aerating is (intermittently than 1 after liquid level reaches liquid level line 7:
1)；
Third walks：It opens and adds 4 valve of alkali storage tank, the lye in alkali storage tank 4 is inputted by regenerating active carbon tower by delivery pump 6
In 1, PH to 6-8 is adjusted；
4th step：1 bottom valve of regenerating active carbon tower is opened, makes the waste liquid for mixing up pH from biochemical system 5 is flowed into, waste liquid exists
Biochemical system is handled to rear discharge up to standard, opens the valve that regenerating active carbon tower 1 passes to activated carbon adsorber, will using jet pump
Activated carbon after regeneration, which is sent into activated carbon adsorber, to be recycled.
As a result：The regenerative operation time of the activated carbon of 500kg adsorption saturations probably needs 3-4h, charcoal to lose less than 0.5%,
Regenerating active carbon rate is up to 99%, and the biodegradability B/C of regeneration liquid waste is 0.35 or more；The COD of biochemical treatment system water outlet exists
30mg/L or less.
Activated carbon is granular activated carbon in the present embodiment, and is conveyed in the form of fluid bed, and conveying is convenient, this is effectively
The charcoal loss rate for reducing activated carbon；In regenerative process, catalytic temperature is at 70 DEG C or so, and heating water is less, simultaneous oxidation rank
Section need not heat, and can be reacted using waste heat, save electric energy；It, can will be organic in solution when catalytic oxidation stage
Object is oxidized to small-molecule substance, greatly improves its biodegradability；After regenerative wastewater enters biochemical system, anaerobic pond is needed not move through
Organic matter can thoroughly be degraded.Compared with prior art, the present invention has regeneration efficiency height, favorable regeneration effect, the charcoal proportion of goods damageds
Low, regenerative wastewater is thoroughly handled, the low advantage of equipment operating cost.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that the ordinary skill of this field is without wound
The property made labour, which according to the present invention can conceive, makes many modifications and variations.Therefore, all technician in the art
Pass through the available technology of logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. the equipment of a kind of regenerating active carbon and its liquid waste processing, including regenerating active carbon tower, which is characterized in that further include sour storage
Slot, oxidant storage tank, alkali storage tank, biochemical treatment system, delivery pump and delivery pipe, the regenerating active carbon tower by delivery pipe with
Acid storage tank, oxidant storage tank, alkali storage tank, biochemical treatment system are connected with delivery pump, and the delivery pump is acid storage tank, oxidant storage
Liquid conveying in slot and alkali storage tank provides power, the regenerating active carbon tower, acid storage tank, oxidant storage tank, alkali storage tank, biochemistry
Processing system controls the flowing of liquid by respective valve, and the regenerator can be in acid storage tank, oxidant storage tank and alkali storage tank
Regenerated carbon under the processing successively of liquid, the biochemical treatment system are left after can handling regenerating active carbon tower regenerated carbon
Waste liquid to discharge after up to standard.
2. the equipment of regenerating active carbon as described in claim 1 and its liquid waste processing, which is characterized in that the biochemical treatment system
System includes aerobic tank and MBR biochemical systems.
3. the equipment of regenerating active carbon as claimed in claim 2 and its liquid waste processing, which is characterized in that the MBR department of biochemistry
System includes MBR membrane cisternas, ultrafiltration membrane and water production system, and the ultrafiltration membrane is curtain hollow-fibre membrane, the curtain hollow-fibre membrane
Aperture is between 0.08-2 μm.
4. the equipment of regenerating active carbon as claimed in claim 3 and its liquid waste processing, which is characterized in that in the MBR membrane cisternas
Filler is placed, the shape of filler is spongy, is suspended in MBR biochemical systems pond, flowable.
5. the equipment of regenerating active carbon as described in claim 1 and its liquid waste processing, which is characterized in that the oxidant storage tank
In oxidant be one or more of sodium peroxydisulfate, sodium perchlorate, sodium chlorate and hydrogen peroxide.
6. the equipment of regenerating active carbon as described in claim 1 and its liquid waste processing, which is characterized in that the regenerating active carbon
Tower includes electric heater unit, aerator and thermometric display device, and regenerating active carbon tower side is provided with upper, middle and lower three can
Viewing window.
7. a kind of equipment using regenerating active carbon and its liquid waste processing as claimed in any one of claims 1 to 6 carries out activity
Charcoal regenerates and its method of liquid waste processing, which is characterized in that includes the following steps：
The first step：The activated carbon of saturation absorption is inputted regenerating active carbon tower, empties the liquid in regenerating active carbon tower by acid processing
Body opens acid storage tank valve, the liquid in acid storage tank is conveyed into regenerating active carbon tower to liquid level line by delivery pump, floods work
Property charcoal, pickling impregnates proper time and intermittent aerating, thereafter lets out partially liq to liquid and just flood activity after a certain period of time
Charcoal upper layer is heated to 95-100 DEG C of constant temperature processing certain time；
Second step：Low-temperature oxidation stops heating, opens oxidant storage tank valve, by delivery pump by the liquid in oxidant storage tank
Body is conveyed into regenerating active carbon tower to liquid level line, impregnates certain time and intermittent aerating；
Third walks：Alkali cleaning neutralizes, and opens alkali storage tank valve, the liquid in alkali storage tank is conveyed into regenerating active carbon by delivery pump
Tower adjusts pH to 6-8；
4th step：Regenerating active carbon tower bottom valve is opened in the recycling of liquid waste processing and activated carbon, allow adjust the waste liquid of pH from
Stream enters biochemical treatment system, and the biochemical treatment system discharges liquid waste processing to up to standard afterwards, the activated carbon after the regeneration
It is fed back in activated carbon adsorber.
8. the method for regenerating active carbon as claimed in claim 7 and its liquid waste processing, which is characterized in that the activated carbon is
Grain activated carbon, is conveyed in the form of fluid bed.
9. the method for regenerating active carbon as claimed in claim 7 and its liquid waste processing, which is characterized in that the second step oxidation
Temperature is not less than 65 DEG C, reaction time 30min in the process, need not be heated in the oxidation process, can be complete by waste heat
At oxidative decomposition.
10. the method for regenerating active carbon as claimed in claim 7 and its liquid waste processing, which is characterized in that in the first step
Pickling time is 5min, soaking time 30min, and constant temperature processing time is 120min, and soaking time is in the second step
30min。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244259.9A CN108355630A (en) | 2018-03-23 | 2018-03-23 | A kind of device and method of regenerating active carbon and its liquid waste processing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810244259.9A CN108355630A (en) | 2018-03-23 | 2018-03-23 | A kind of device and method of regenerating active carbon and its liquid waste processing |
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| CN201810244259.9A Pending CN108355630A (en) | 2018-03-23 | 2018-03-23 | A kind of device and method of regenerating active carbon and its liquid waste processing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201654A (en) * | 2019-07-11 | 2019-09-06 | 国家电网有限公司 | Sulfur hexafluoride adsorbent recovery and processing system and method based on ultrasound cavitation effect |
| CN110605108A (en) * | 2019-09-26 | 2019-12-24 | 西安建筑科技大学 | Method for regenerating desulfurization and denitrification waste active carbon |
| CN110756182A (en) * | 2019-09-20 | 2020-02-07 | 瓮福达州化工有限责任公司 | Regeneration method of decoloring tower for wet-process phosphoric acid production |
| CN113371780A (en) * | 2021-06-11 | 2021-09-10 | 上海力脉环保设备有限公司 | Treatment method of wastewater containing low-concentration perfluorooctanoic acid |
| CN114247437A (en) * | 2021-12-21 | 2022-03-29 | 甘肃银光化学工业集团有限公司 | Chemical regeneration method of granular active carbon for adsorbing nitramine compound |
| CN115569645A (en) * | 2022-10-19 | 2023-01-06 | 广东佳纳能源科技有限公司 | Method and device for regenerating activated carbon |
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| EP2628483A1 (en) * | 2010-10-12 | 2013-08-21 | Futamura Kagaku Kabushiki Kaisha | Medical adsorbent and method for producing same |
| CN205634971U (en) * | 2016-05-31 | 2016-10-12 | 上海力脉环保设备有限公司 | System for utilize active carbon adsorption regenerator column to handle organic waste water |
| CN206121762U (en) * | 2016-05-31 | 2017-04-26 | 上海力脉环保设备有限公司 | Active carbon electric heat regeneration facility |
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| EP2628483A1 (en) * | 2010-10-12 | 2013-08-21 | Futamura Kagaku Kabushiki Kaisha | Medical adsorbent and method for producing same |
| CN205634971U (en) * | 2016-05-31 | 2016-10-12 | 上海力脉环保设备有限公司 | System for utilize active carbon adsorption regenerator column to handle organic waste water |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110201654A (en) * | 2019-07-11 | 2019-09-06 | 国家电网有限公司 | Sulfur hexafluoride adsorbent recovery and processing system and method based on ultrasound cavitation effect |
| CN110201654B (en) * | 2019-07-11 | 2024-04-09 | 国家电网有限公司 | Sulfur hexafluoride adsorbent recovery processing system and method based on ultrasonic cavitation effect |
| CN110756182A (en) * | 2019-09-20 | 2020-02-07 | 瓮福达州化工有限责任公司 | Regeneration method of decoloring tower for wet-process phosphoric acid production |
| CN110605108A (en) * | 2019-09-26 | 2019-12-24 | 西安建筑科技大学 | Method for regenerating desulfurization and denitrification waste active carbon |
| CN113371780A (en) * | 2021-06-11 | 2021-09-10 | 上海力脉环保设备有限公司 | Treatment method of wastewater containing low-concentration perfluorooctanoic acid |
| CN114247437A (en) * | 2021-12-21 | 2022-03-29 | 甘肃银光化学工业集团有限公司 | Chemical regeneration method of granular active carbon for adsorbing nitramine compound |
| CN115569645A (en) * | 2022-10-19 | 2023-01-06 | 广东佳纳能源科技有限公司 | Method and device for regenerating activated carbon |
| CN115569645B (en) * | 2022-10-19 | 2023-11-21 | 广东佳纳能源科技有限公司 | Method and device for regenerating active carbon |
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